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The effects of different pilot-drilling methods on the mechanical stability of a mini-implant system at placement and removal: a preliminary study.

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dc.contributor.authorCho, IS-
dc.contributor.authorChoo, H-
dc.contributor.authorKim, SK-
dc.contributor.authorShin, YS-
dc.contributor.authorKim, DS-
dc.contributor.authorKim, SH-
dc.contributor.authorChung, KR-
dc.contributor.authorHuang, JC-
dc.date.accessioned2012-04-26T01:55:23Z-
dc.date.available2012-04-26T01:55:23Z-
dc.date.issued2011-
dc.identifier.issn1225-5610-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/6583-
dc.description.abstractOBJECTIVE: To investigate the effects of different pilot-drilling methods on the biomechanical stability of self-tapping mini-implant systems at the time of placement in and removal from artificial bone blocks. METHODS: Two types of artificial bone blocks (2-mm and 4-mm, 102-pounds per cubic foot [102-PCF] polyurethane foam layered over 100-mm, 40-PCF polyurethane foam) were custom-fabricated. Eight mini-implants were placed using the conventional motor-driven pilot-drilling method and another 8 mini-implants were placed using a novel manual pilot-drilling method (using a manual drill) within each of the 2-mm and 4-mm layered blocks. The maximum torque values at insertion and removal of the mini-implants were measured, and the total energy was calculated. The data were statistically analyzed using linear regression analysis. RESULTS: The maximum insertion torque was similar regardless of block thickness or pilot-drilling method. Regardless of the pilot-drilling method, the maximum removal torque for the 4-mm block was statistically higher than that for the 2-mm block. For a given block, the total energy at both insertion and removal of the mini-implant for the manual pilot-drilling method were statistically higher than those for the motor-driven pilot-drilling method. Further, the total energies at removal for the 2-mm block was higher than that for the 4-mm block, but the energies at insertion were not influenced by the type of bone blocks. CONCLUSIONS: During the insertion and removal of mini-implants in artificial bone blocks, the effect of the manual pilot-drilling method on energy usage was similar to that of the conventional, motor-driven pilot-drilling method.en
dc.formattext/plain-
dc.language.isoen-
dc.titleThe effects of different pilot-drilling methods on the mechanical stability of a mini-implant system at placement and removal: a preliminary study.-
dc.typeArticle-
dc.subject.keywordAnchorage-
dc.subject.keywordImplant design-
dc.subject.keywordSurface treatment-
dc.subject.keywordOrthodontic mini-implant-
dc.contributor.affiliatedAuthor정, 규림-
dc.type.localJournal Papers-
dc.identifier.doi10.4041/kjod.2011.41.5.354-
dc.citation.titleKorean journal of orthodontics-
dc.citation.volume41-
dc.citation.number5-
dc.citation.date2011-
dc.citation.startPage354-
dc.citation.endPage360-
dc.identifier.bibliographicCitationKorean journal of orthodontics, 41(5). : 354-360, 2011-
dc.identifier.eissn2005-372X-
dc.relation.journalidJ012255610-
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Dentistry
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